D33

D33, D.33 or D-33 may refer to:

Ships

 * Almirante Garcia, an Almirante Clemente-class destroyer of the Venezuelan Navy
 * BRAZILIAN DESTROYER Maranhao, a Fletcher-class destroyer of the Brazilian Navy
 * HMAS Canberra (D33), a County-class heavy cruiser of the Royal Australian Navy
 * HMS Dauntless (D33), a D-class destroyer of the Royal Navy

Other uses

 * Akaflieg Darmstadt D-33, a German experimental glider
 * D33 road (Croatia)
 * Dewoitine D.33, a French single-engined monoplane
 * LNER Class D33, a class of British steam locomotives
 * d33, the piezoelectric coefficient
 * Tarrasch Defense, a chess opening